wan2.5-i2v-preview生成720p视频。万相2.5-图生视频-Preview，全新升级技术架构，支持与画面同步的声音生成，支持10秒长视频生成，更强的指令遵循能力，运动能力、画面质感进一步提升。
curl https://api.yourplatform.com/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "undefined",
"messages": [
{"role": "user", "content": "Hello!"}
],
"stream": true
}'